#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<assert.h>
#define n 100
typedef int SLtype;
typedef struct SLlist
{
	SLtype *arr;
	int size ;
	int capacity ;
}SL;
typedef struct SLlist SL;
void initSLlist(SL*psl);
void SLlistpushback(SL*psl,SLtype x);
void SLlistprint(SL* psl);
void SLlistpushfront(SL*psl,SLtype x);
void SLlistpopback(SL*psl);
void SLlistpopfront(SL*psl);
void SLlistcapacity(SL* psl);
void SLlistinsert(SL* psl, SLtype x,int position);
void SLlisterase(SL* psl,int position);
void SLlistfind(SL*psl,)